My 7yo son was diagnosed with ADHD. He is in learning support at school and has a yet undiagnosed learning disorder with reading/writing. That is what frustrates him most. He has some issues at home, but the worst are at school. He was on Straterra and it helped the ADHD minimally. They took that away and placed him on Concerta which started helping the hyperactivity at school and allowed more focus. Normally at home he is easy going and acts like a normal kid except for the hyperactivity. Before the increase in Concerta he would become easily frustrated and you could tell he was upset because he would put his head down. He has always been a very sensitive child. Then they increased teh concerta and then he would not be in control of himself, he would get frustrated, then run wherever he could run, even out of the school once. Last night after school he was sullen and then became angry and then cried and cried and cried. Finally he came around and was his normal self. My main concern is the frustration and sensitivity piece. He has lots of friends and on good days does very well in school.